EP0427984B2 - Aufsätze zum Gebrauch in Enzymimmunotests und Verfahren zur Herstellung dieser Aufsätze - Google Patents

Aufsätze zum Gebrauch in Enzymimmunotests und Verfahren zur Herstellung dieser Aufsätze Download PDF

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Publication number
EP0427984B2
EP0427984B2 EP90120364A EP90120364A EP0427984B2 EP 0427984 B2 EP0427984 B2 EP 0427984B2 EP 90120364 A EP90120364 A EP 90120364A EP 90120364 A EP90120364 A EP 90120364A EP 0427984 B2 EP0427984 B2 EP 0427984B2
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EP
European Patent Office
Prior art keywords
biotinylated
antibody
avidin
antigen
support
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Expired - Lifetime
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EP90120364A
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English (en)
French (fr)
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EP0427984B1 (de
EP0427984A1 (de
Inventor
David H. Katz
Steven W. Cooper
Theodore T. Lee
Shung-Ho Chang
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QUIDEL
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QUIDEL
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/54366—Apparatus specially adapted for solid-phase testing
    • G01N33/54386—Analytical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/58—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving labelled substances
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/74—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving hormones or other non-cytokine intercellular protein regulatory factors such as growth factors, including receptors to hormones and growth factors
    • G01N33/76—Human chorionic gonadotropin including luteinising hormone, follicle stimulating hormone, thyroid stimulating hormone or their receptors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/805—Test papers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/81—Packaged device or kit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/975—Kit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S436/00—Chemistry: analytical and immunological testing
    • Y10S436/807—Apparatus included in process claim, e.g. physical support structures
    • Y10S436/808—Automated or kit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S436/00—Chemistry: analytical and immunological testing
    • Y10S436/807—Apparatus included in process claim, e.g. physical support structures
    • Y10S436/81—Tube, bottle, or dipstick
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S436/00—Chemistry: analytical and immunological testing
    • Y10S436/815—Test for named compound or class of compounds
    • Y10S436/817—Steroids or hormones
    • Y10S436/818—Human chorionic gonadotropin

Definitions

  • This invention relates to articles of manufacture for use in enzyme immuno-assay (EIA) techniques, in particular the determination of human chorionic gonadotropin (HCG); to methods of making such articles; and to a method for determining immunologically active species in which such an article is used.
  • EIA enzyme immuno-assay
  • HCG human chorionic gonadotropin
  • EIA Enzyme immuno-assay
  • Test devices have been described such as US 4,216,245 where different reagents are incorporated with a carrier matrix.
  • the reagents are positioned separately from each other and only come into contact when the test device is wetted with the sample.
  • the present invention provides a means which, like the methods described and claimed in the parent application, overcomes these disadvantages.
  • a rapid, reliable and simple enzyme immuno-assay can be carried out, in particular by the methods claimed in the parent application.
  • the parent application describes a method for determining HCG which is highly sensitive, extremely simple to carry out, and can be adapted to home use kits.
  • the invention claimed in the parent application comprises methods and kits for carrying out determinations which include, but are not confined to, the detection of HCG, since the concept of that invention is more broadly applicable to specific antigen determinations and can also be adapted for determination of antibodies, using the same concept by simply reversing the role of the antigen and antibody.
  • a method of manufacturing a multiple indicator support characterised by the steps of:
  • a porous solid phase support having a surface, characterised by an avidin coating on at least substantial portions of said surface, and biotinylated antibody or antigen printed in a predetermined pattern on the avidin coated surface leaving portions of the avidin coated surface of the support uncoated whereby forming said predetermined pattern
  • step (a) comprises coating substantially one surface of a filter paper with avidin
  • step (b) comprises printing a predetermined pattern of biotinylated antibody or biotinylated antigen on said one surface.
  • the result is a solid phase support having bound thereon HCG and a detectable label which is present in proportion to the amount of HCG substrate or developer for the label, or counted if the label is radioactive, as a measure of the concentration of HCG in the sample.
  • the labelled species may be removed from the support and detected in any conventional manner. Enzyme labelling, e.g., with ß-galactosidase, is a preferred approach, but other enzymes and radiolabels may be used.
  • the invention can also be utilized in the technique for determining the presence or absence, and measuring the quantity of antibodies.
  • an antigen to the specific antibody is biotinylated and bound through avidin to a support, a like antigen is labelled and the reaction is carried out in the same manner, except that the antibody is the species to be determined.
  • the solid phase supports in the assay are, in this example, paper discs approximately .7 cm in diameter, Whatman (Trademark) grade 541.
  • BSS borate buffered saline
  • the immunoassay is accomplished by the interactions of the assay components as described below:
  • the disc resides in a chamber with a lyophilized pellet of Anti-HCG- ⁇ -Galactosidase, 250 ⁇ l of urine sample is used to dissolve the pellet and rehydrate the disc.
  • the disc-avidin-biotin-Anti HCG (BAD), the anti-HCG- ⁇ -Galactosidase, and the urine sample incubate simultaneously at room temperature for 10 minutes.
  • the disc is then removed and washed extensively with a buffer solution or under a stream of tepid water.
  • the disc is finally incubated with O-nitrophenyl-galactopyranoside (ONPG), a synthetic substrate for ß-Galactosidase.
  • the enzyme activity is related to the amount of HCG present in the urine sample.
  • One feature of the invention is the application of the method and protocol to a kit which can be used by an untrained individual in the privacy of her own home to detect the presence or absence of HCG as an indicator of possible pregnancy.
  • this detection can be made as early as three days after a menstrual period has been missed.
  • a missed period may indicate pregnancy, and it may also indicate a possible complication, in some individuals an early indication of pregnancy is important.
  • Kits may also be used in or out of the clinic or laboratory to monitor various tumors.
  • Kits include all reagents necessary to complete a qualitative or semi-quantitative determination of HCG in urine.
  • the basic constituents of a kit are: (1) Solid phase support, typically filter paper discs, treated with avidin, the avidin being bound to the paper to provide sites which are reactor with biotinylated anti-HCG antibody; (2) Labeled anti-HCG antibody; (4) Wash reagents; and (5) Developing reagent.
  • the developing reagent is O-nitrophenyl-galactopyranoside (ONPG). Development of a ⁇ -galactoside labeled HCG-antibody species provide a color change which is visible to the naked eye.
  • Kits would typically include a vessel having a predetermined volume indication, instructions for use, and such accessories as may be convenient for the user.
  • Figure 1 depicts an example of an article of manufacture, such as component of a kit, which embodies a principle of this invention.
  • the device depicted in Figure 1 comprises the solid phase support, a layer of avidin, and a layer of biotinylated antibody (or antigen if an antibody is to be detected).
  • a layer of avidin a layer of avidin
  • a layer of biotinylated antibody or antigen if an antibody is to be detected.
  • these many layers need not be perfectly congruent with one on the other and, if the substrate were porous, would not be physically discrete layers but in effect would have the described structure.
  • biotinylated antibody or antigen
  • the next component is biotinylated antibody (or antigen) which is not coated over the entire surface, as was the case in the earlier described examples. Rather the biotinylated antibody (or antigen) is "printed” on only selected areas of the avidin coated surface in any desired pattern.
  • the term "printed” is used to describe the best known technique for manufacturing the multiple indicator substrate of this invention, and the ability to "print” the antibody on selected areas is a very important feature of this invention. It has been extremely difficult to provide any reliable pattern on filter papers or other substrates because the reagent migrates through or across the substrate. The present invention obviates this entire problem.
  • the biotinylated antibody couples immediately with the avidin, thereby fixing the area on the avidin coated support where a particular antibody will be found.
  • the substrate may include indicia formed of ink or other material as well as the indicia formed of antibody (or antigen).
  • the avidin coated portion of a substrate was coated with biotinylated ragweed allergen, then incubated simultaneously with human serum containing Anti-Ragweed allergen-IgE and with goat-Anti-Human IgE- ⁇ -galactosidase.
  • the presence of Anti-Ragweed IgE is determined by the color produced in the area coated as described, and can be measured photometrically as described above.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cell Biology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Biotechnology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Pathology (AREA)
  • Endocrinology (AREA)
  • Reproductive Health (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Geophysics And Detection Of Objects (AREA)

Claims (8)

  1. Verfahren zur Herstellung eines Mehrfachindikatorträgers, gekennzeichnet durch folgende Stufen:
    (a) wenigstens ein Teil eines Feststoffträgers wird mit Avidin beschichtet; und
    (b) nur vorbestimmte Abschnitte des nach der Stufe (a) mit Avidin beschichteten Trägers werden mit biotinyliertem Antikörper oder biotinyliertem Antigen beschichtet, wobei Abschnitte des Substrats unbeschichtet bleiben, wodurch ein vorgegebenes Muster von Bereichen des mit biotinyliertem Antikörper oder Antigen beschichteten Trägers gebildet wird, wobei die Stufe (a) ein Beschichten im wesentlichen einer Oberfläche eines Filterpapiers mit Avidin umfaßt, und
    die Stufe (b) das Aufdrucken eines vorgegebenen Musters von biotinyliertem Antikörper oder biotinyliertem Antigen auf die besagte eine Oberfläche umfaßt.
  2. Verfahren nach Anspruch 1, wobei in der Stufe (b) der biotinylierte Antikörper ein Anti-HCG (Human Chorionic Gonadotropin)-Antikörper ist.
  3. Als Erzeugnis ein poröser Feststoffträger, der eine Oberfläche aufweist, gekennzeichnet durch eine Avidinbeschichtung an wenigstens wesentlichen Bereichen der besagten Oberfläche, und einen biotinylierten Antikörper oder Antigen, das in einem vorgegebenen Muster auf die avidinbeschichtete Oberfläche gedruckt ist, wobei Bereiche der mit Avidin beschichteten Oberfläche des Trägers unbeschichtet gelassen werden, wodurch das besagte vorgegebene Muster gebildet wird, wobei der Schritt (a) das Beschichten im wesentlichen einer Oberfläche eines Filterpapiers mit Avidin umfaßt und der Schritt (b) das Drucken eines vorgegebenen Musters von biotinyliertem Antikörper oder biotinyliertem Antigen auf die besagte eine Oberfläche umfaßt.
  4. Erzeugnis nach Anspruch 3, wobei die Trägeroberfläche im wesentlichen vollständig mit Avidin beschichtet ist, und wobei das biotinylierte Antikörper- oder Antigen-Muster wesentlich weniger als die besagte Oberfläche ausmacht.
  5. Erzeugnis nach Anspruch 3 oder 4, wobei das biotinylierte Antikörper- oder Antigen-Muster die Form lesbarer Symbole, Zahlen oder Buchstaben oder eine Kombination davon aufweist.
  6. Erzeugnis nach einem der Ansprüche 3 bis 5, wobei der biotinylierte Antikörper ein Anti-HCG (Human Chorionic Gonadotropin)-Antikörper ist.
  7. Verfahren zur Bestimmung einer immunologisch aktiven Spezies, gekennzeichnet durch folgende Stufen:
    (a) Beschichtung einer Oberfläche eines porösen Feststoffträgers mit Avidin,
    (b) Drucken eines biotinylierten Antikörpers oder biotinylierten Antigens auf den besagten mit Avidin beschichteten Träger in einem vorgegebenen Muster;
    (c) Reaktion der mit biotinyliertem Antikörper oder biotinyliertem Antigen beschichteten Oberfläche mit einer Lösung, von der angenommen wird, dass sie die immunologisch aktive Spezies enthält, und dann mit einem Markierungsanteil, so dass der biotinylierte Antikörper oder das biotinylierte Antigen mit der immunologisch aktiven Spezies reagiert und dass die immunologisch aktive Spezies mit einem Markierungsanteil reagiert, und
    (d) Reaktion des Markierungsanteils mit einem Entwicklungsreagens, wobei der Schritt (a) das Beschichten im wesentlichen einer Oberfläche eines Filterpapiers mit Avidin umfaßt, und der Schritt (b) das Drucken eines vorgegebenen Musters von biotinyliertem Antikörper oder biotinyliertem Antigen auf die besagte eine Oberfläche umfaßt.
  8. Verfahren nach Anspruch 7, wobei der Antikörper in der Stufe (b) ein Anti-HCG (Human Chorionic Gonadotropin)-Antikörper ist.
EP90120364A 1983-04-08 1983-12-14 Aufsätze zum Gebrauch in Enzymimmunotests und Verfahren zur Herstellung dieser Aufsätze Expired - Lifetime EP0427984B2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/483,231 US4496654A (en) 1983-04-08 1983-04-08 Detection of HCG with solid phase support having avidin coating
US483231 1983-04-08
EP84900563A EP0138826B1 (de) 1983-04-08 1983-12-14 Nachweis menschlichen chorionischen gonadotropins

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP84900563.2 Division 1983-12-14
EP84900563A Division EP0138826B1 (de) 1983-04-08 1983-12-14 Nachweis menschlichen chorionischen gonadotropins

Publications (3)

Publication Number Publication Date
EP0427984A1 EP0427984A1 (de) 1991-05-22
EP0427984B1 EP0427984B1 (de) 1995-04-12
EP0427984B2 true EP0427984B2 (de) 2000-12-27

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ID=23919239

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90120364A Expired - Lifetime EP0427984B2 (de) 1983-04-08 1983-12-14 Aufsätze zum Gebrauch in Enzymimmunotests und Verfahren zur Herstellung dieser Aufsätze
EP84900563A Expired EP0138826B1 (de) 1983-04-08 1983-12-14 Nachweis menschlichen chorionischen gonadotropins

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Application Number Title Priority Date Filing Date
EP84900563A Expired EP0138826B1 (de) 1983-04-08 1983-12-14 Nachweis menschlichen chorionischen gonadotropins

Country Status (8)

Country Link
US (1) US4496654A (de)
EP (2) EP0427984B2 (de)
JP (1) JPS60500731A (de)
AT (1) ATE121195T1 (de)
AU (1) AU555790B2 (de)
CA (1) CA1209035A (de)
DE (2) DE3382785T2 (de)
WO (1) WO1984004171A1 (de)

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CA1209035A (en) 1986-08-05
ATE121195T1 (de) 1995-04-15
EP0138826B1 (de) 1992-04-15
EP0427984B1 (de) 1995-04-12
DE3382785D1 (de) 1995-05-18
JPH0449657B2 (de) 1992-08-12
US4496654A (en) 1985-01-29
EP0427984A1 (de) 1991-05-22
AU3750585A (en) 1986-07-17
DE3382785T2 (de) 1995-10-05
DE3382545D1 (de) 1992-05-21
WO1984004171A1 (en) 1984-10-25
AU555790B2 (en) 1986-10-09
JPS60500731A (ja) 1985-05-16
EP0138826A4 (de) 1986-07-23
EP0138826A1 (de) 1985-05-02

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